Fire-fighting ventilation pipeline with smoke exhaust effect

Abstract

The utility model discloses a fire-fighting ventilating duct with a smoke exhaust effect, which comprises a mounting plate, a plurality of fixing holes are formed in the mounting plate, one side of the mounting plate is fixedly connected with an exhaust duct, and a ventilating component is arranged on the mounting plate; the bottom of the exhaust pipeline is fixedly connected with a connecting ring, the inner wall of the connecting ring is in threaded connection with a smoke exhaust pipe, and the exhaust pipeline is provided with a pipe sealing assembly. Through the arrangement of the pipe sealing assembly and the smoke exhaust pipe, the exhaust pipeline can be sealed when smoke is exhausted, and then air and smoke are exhausted through the smoke exhaust pipe; according to the smoke exhaust device, the normal ventilation and smoke exhaust effect can be guaranteed, smoke can be exhausted through a designated pipeline, the smoke exhaust pipe can be conveniently cleaned after smoke is exhausted, the whole exhaust pipeline does not need to be disassembled, manpower is saved, and meanwhile the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting ventilation equipment, in particular to a fire-fighting ventilation duct with a smoke exhaust effect. Background Technique

[0002] Fire-fighting ventilation ducts are important facilities for smoke exhaust and ventilation. They are usually installed in buildings to ensure the safe evacuation of people in case of a fire and to provide appropriate ventilation conditions to help firefighters fight the fire. These ducts are designed to meet relevant fire safety standards and building codes to ensure their effectiveness and reliability.

[0003] Currently, when the existing fire-fighting ventilation ducts are in use, they usually exhaust smoke and ventilate through a single duct. Since the smoke contains a large amount of dust, more soot will adhere to the inner wall of the fire-fighting duct after smoke exhaust. As a result, the soot on the inner wall of the duct may fall into the room during ventilation, and at the same time, the soot will also affect the atmospheric environment after exhaust, and the use effect is poor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fire-fighting ventilation duct with a smoke exhaust effect to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fire-fighting ventilation duct with a smoke exhaust effect includes a mounting plate. A plurality of fixing holes are opened on the mounting plate. One side of the mounting plate is fixedly connected with an exhaust duct. A ventilation component is arranged on the mounting plate.

[0007] A connecting ring is fixedly connected to the bottom of the exhaust duct. A smoke exhaust pipe is threadedly connected to the inner wall of the connecting ring. A pipe sealing component is arranged on the exhaust duct.

[0008] In a preferred embodiment of the utility model, the ventilation component includes mounting grooves opened on the front and rear inner walls of the mounting plate. A ventilation plate is arranged at the center of the mounting plate. A plurality of ventilation holes are opened on the ventilation plate. Limiting plates are fixedly connected to the front and rear ends of the ventilation plate. Sliding grooves are opened at the top and bottom of the two mounting grooves. Fixing blocks are slidably connected to the centers of the two groups of sliding grooves. Springs are fixedly connected between the two groups of fixing blocks and the corresponding sliding grooves.

[0009] In a preferred embodiment of the utility model, the two fixing blocks are both in contact with the limiting plate.

[0010] In a preferred embodiment of the utility model, a connecting hole corresponding to the connecting ring is opened at the bottom of the exhaust duct. The connecting ring is installed at the connecting hole.

[0011] In a preferred embodiment of the present utility model, the pipe sealing assembly includes a sliding frame slidably connected to the center of the exhaust duct. A wind baffle is installed at the center of the sliding frame. A toothed plate is fixedly connected to the rear end of one side of the sliding frame. A fixing frame is fixedly connected to the top of the exhaust duct. A rotating shaft is rotatably connected to the fixing frame. A gear is fixedly connected to the outer wall of the rotating shaft. A driving motor is fixedly connected to the fixing frame, and the output shaft of the driving motor is connected to one end of the rotating shaft.

[0012] In a preferred embodiment of the present utility model, a sliding hole corresponding to the toothed plate and the sliding frame is provided at the top of the exhaust duct, and the sliding frame penetrates through the center of the sliding hole.

[0013] In a preferred embodiment of the present utility model, a shaft hole corresponding to the rotating shaft is provided on the fixing frame, and the rotating shaft penetrates through the center of the shaft hole.

[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model.

[0015] The difference from the prior art lies in that: through the arranged pipe sealing assembly and the smoke exhaust pipe, when exhausting smoke, the exhaust duct can be closed, so that both air and smoke are discharged through the smoke exhaust pipe. This can not only ensure the effect of normal ventilation and smoke exhaust, but also enable the smoke to be discharged through the designated pipe. After smoke exhaust, it is convenient to clean the smoke exhaust pipe without disassembling the entire exhaust duct, saving manpower and reducing the maintenance cost at the same time. Through the arranged ventilation assembly, the ventilation plate for guiding can be quickly disassembled, so as to facilitate the cleaning of dust and impurities therein and prevent blockage, improving the portability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0017] Figure 1 is the overall external view of a fire ventilation duct with a smoke exhaust effect;

[0018] Figure 2 is the top view of a fire ventilation duct with a smoke exhaust effect;

[0019] Figure 3 is the side view of a fire ventilation duct with a smoke exhaust effect;

[0020] Figure 4 is Figure 2 the cross-sectional view taken along the line A-A in

[0021] Figure 5Schematic diagram of the structure of a pipe sealing component in a fire-fighting ventilation duct with a smoke exhaust effect;

[0022] Figure 6 Schematic diagram of the structure of a connecting ring in a fire-fighting ventilation duct with a smoke exhaust effect.

[0023] In the figure: 1, mounting plate; 2, fixing hole; 3, exhaust duct; 4, ventilation component; 401, mounting groove; 402, ventilation plate; 403, ventilation hole; 404, limiting plate; 405, sliding groove; 406, fixing block; 407, spring; 5, connecting ring; 6, smoke exhaust pipe; 7, pipe sealing component; 701, sliding frame; 702, wind baffle; 703, toothed plate; 704, fixing frame; 705, rotating shaft; 706, gear; 707, driving motor. Detailed implementation manners

[0024] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0025] Please refer to Figures 1-6, a fire ventilation duct with a smoke exhaust effect, including a mounting plate 1, on which a plurality of fixing holes 2 are provided. One side of the mounting plate 1 is fixedly connected to an exhaust duct 3, and a ventilation component 4 is arranged on the mounting plate 1; the ventilation component 4 includes mounting grooves 401 opened on the front and rear inner walls of the mounting plate 1. A ventilation plate 402 is arranged at the center of the mounting plate 1. A plurality of ventilation holes 403 are opened on the ventilation plate 402. Limiting plates 404 are fixedly connected to the front and rear ends of the ventilation plate 402. Both groups of fixing blocks 406 are in contact with the limiting plates 404; so that the two groups of fixing blocks 406 can limit and fix the two limiting plates 404, and make it stably installed at the center of the mounting groove 401, and then the ventilation plate 402 is installed at the center of the mounting plate 1, ensuring the stability of the installation and guaranteeing the diversion and ventilation effect of the ventilation plate 402. Sliding grooves 405 are opened at the top and bottom of the two mounting grooves 401. Fixing blocks 406 are slidably connected to the centers of the two groups of sliding grooves 405. Spring 407 is fixedly connected between each group of fixing blocks 406 and the corresponding sliding groove 405; the air in the room is discharged through the ventilation holes 403 of the ventilation plate 402, and then enters the center of the exhaust duct 3, and is discharged through the exhaust duct 3 and the smoke exhaust pipe 6, having a good ventilation effect. When the ventilation plate 402 needs to be cleaned, push the two groups of fixing blocks 406 to make them enter the center of the sliding groove 405, and the limiting and fixing of the limiting plates 404 can be released, and then the ventilation plate 402 can be directly taken out for cleaning. When a fault occurs in the ventilation system or emergency repair is needed, quickly disassembling the ventilation plate 402 can facilitate the maintenance personnel to quickly enter the interior for repair, reducing the repair time and the influence range. When a fire occurs and it is necessary to increase the ventilation volume or perform other emergency treatments, quickly disassembling the ventilation plate 402 can help the firefighters quickly adjust the ventilation system and improve the fire extinguishing efficiency. A connecting ring 5 is fixedly connected to the bottom of the exhaust duct 3. A connecting hole corresponding to the connecting ring 5 is opened at the bottom of the exhaust duct 3. The connecting ring 5 is installed at the connecting hole; so that smoke can be exhausted through the smoke exhaust pipe 6 during smoke exhaust, and the smoke can be discharged through the connecting hole, ensuring the smoke exhaust effect and preventing the danger caused by smoke blockage. The inner wall of the connecting ring 5 is threadedly connected with a smoke exhaust pipe 6.

[0026] Such as Figure 5As shown in the figure, a pipe sealing assembly 7 is provided on the exhaust duct 3. The pipe sealing assembly 7 includes a sliding carriage 701 slidably connected to the center of the exhaust duct 3. A wind deflector 702 is installed at the center of the sliding carriage 701. A toothed plate 703 is fixedly connected to the rear end of one side of the sliding carriage 701. A sliding hole corresponding to the toothed plate 703 and the sliding carriage 701 is opened at the top of the exhaust duct 3, and the sliding carriage 701 penetrates through the center of the sliding hole. So that the sliding carriage 701 can move up and down with the toothed plate 703 after being engaged by the gear 706 and the toothed plate 703, thereby realizing the function of closing the exhaust duct 3. The flue gas is discharged through the smoke exhaust pipe 6. A fixing frame 704 is fixedly connected to the top of the exhaust duct 3. A rotating shaft 705 is rotatably connected to the fixing frame 704. A shaft hole corresponding to the rotating shaft 705 is opened on the fixing frame 704, and the rotating shaft 705 penetrates through the center of the shaft hole. So that the rotating shaft 705 can rotate in the center of the fixing frame 704, and then rotate synchronously with the output shaft of the driving motor 707, thereby driving the gear 706 to rotate, realizing the driving function of moving the sliding carriage 701. A gear 706 is fixedly connected to the outer wall of the rotating shaft 705. A driving motor 707 is fixedly connected to the fixing frame 704, and the output shaft of the driving motor 707 is connected to one end of the rotating shaft 705. When smoke exhaust is required, the driving motor 707 is started. The output shaft of the driving motor 707 drives the rotating shaft 705 to rotate, thereby driving the gear 706 to rotate. The engaged toothed plate 703 moves downward accordingly, driving the sliding carriage 701 to move downward, and the wind deflector 702 moves accordingly, blocking the air outlet of the exhaust duct 3. The flue gas and air are discharged through the smoke exhaust pipe 6. During later maintenance, only the wind deflector 702 and the smoke exhaust pipe 6 need to be maintained. Rotate the smoke exhaust pipe 6 to directly disassemble it, and take out the wind deflector 702 upward to complete the disassembly. The maintenance operation is convenient.

[0027] The working principle of the present utility model is as follows: First, the mounting plate 1 is installed on the outer wall of the building. The indoor air is discharged through the ventilation holes 403 of the ventilation plate 402, and then enters the center of the exhaust duct 3 and is discharged through the exhaust duct 3 and the smoke exhaust pipe 6, having a good ventilation effect. When the ventilation plate 402 needs to be cleaned, push the two fixing blocks 406 to make them enter the center of the sliding groove 405, then the limit fixing of the limit plate 404 can be released, and then the ventilation plate 402 can be directly taken out for cleaning. When smoke exhaust is required, the driving motor 707 is started. The output shaft of the driving motor 707 drives the rotating shaft 705 to rotate, thereby driving the gear 706 to rotate. The engaged toothed plate 703 moves downward accordingly, driving the sliding carriage 701 to move downward, and the wind deflector 702 moves accordingly, blocking the air outlet of the exhaust duct 3. The flue gas and air are discharged through the smoke exhaust pipe 6. During later maintenance, only the wind deflector 702 and the smoke exhaust pipe 6 need to be maintained. Rotate the smoke exhaust pipe 6 to directly disassemble it, and take out the wind deflector 702 upward to complete the disassembly. The maintenance operation is convenient.

[0028] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A fire-fighting ventilation duct with smoke exhaust effect, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a plurality of fixing holes (2), one side of the mounting plate (1) is fixedly connected to an exhaust duct (3), and the mounting plate (1) is provided with a ventilation assembly (4); A connecting ring (5) is fixedly connected to the bottom of the exhaust duct (3), a smoke exhaust pipe (6) is threadedly connected to the inner wall of the connecting ring (5), and a sealing pipe assembly (7) is provided on the exhaust duct (3).

2. A fire-fighting ventilation duct with smoke exhaust effect according to claim 1, characterized in that: The ventilation assembly (4) comprises a mounting groove (401) provided on the front and rear inner walls of the mounting plate (1); a ventilation plate (402) is arranged at the center of the mounting plate (1); a plurality of ventilation holes (403) are arranged on the ventilation plate (402); the front and rear ends of the ventilation plate (402) are fixedly connected to a limit plate (404); the top and bottom of the two mounting grooves (401) are provided with a slide groove (405); the centers of the two groups of the slide grooves (405) are slidably connected to a fixed block (406); and springs (407) are fixedly connected between the two groups of the fixed blocks (406) and the corresponding slide grooves (405).

3. A fire-fighting ventilation duct with smoke exhaust effect according to claim 2, characterized in that: The two groups of fixing blocks (406) are both in contact with the limiting plate (404).

4. The fire-fighting ventilation duct with smoke exhaust effect according to claim 1, characterized in that: A connection hole corresponding to the connection ring (5) is provided at the bottom of the exhaust duct (3), and the connection ring (5) is installed at the connection hole.

5. The fire-fighting ventilation duct with smoke exhaust effect according to claim 1, characterized in that: The sealing tube assembly (7) comprises a slide frame (701) slidably connected to the center of the exhaust duct (3); a windshield plate (702) is installed at the center of the slide frame (701); a tooth plate (703) is fixedly connected to the rear end of one side of the slide frame (701); a fixed frame (704) is fixedly connected to the top of the exhaust duct (3); a rotating shaft (705) is rotatably connected to the fixed frame (704); a gear (706) is fixedly connected to the outer wall of the rotating shaft (705); a driving motor (707) is fixedly connected to the fixed frame (704); and an output shaft of the driving motor (707) is connected to one end of the rotating shaft (705).

6. A fire-fighting ventilation duct with smoke exhaust effect according to claim 5, characterized in that: The top of the exhaust duct (3) is provided with a sliding hole corresponding to the tooth plate (703) and the sliding rack (701), and the sliding rack (701) passes through the center of the sliding hole.

7. The fire-fighting ventilation duct with smoke exhaust effect according to claim 5, characterized in that: The fixing frame (704) is provided with an axial hole corresponding to the rotating shaft (705), and the rotating shaft (705) passes through the center of the axial hole.

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